82nd All the Way vs Mechanicus Standard Grey

How close are they?

ΔE 12.6, fair: the same colour family, but not a straight swap. Mechanicus Standard Grey is a little darker than 82nd All the Way.

Can I use Mechanicus Standard Grey instead of 82nd All the Way?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Mechanicus Standard Grey is a little darker than 82nd All the Way.

Can I use 82nd All the Way instead of Mechanicus Standard Grey?

The same difference applies the other way round: 82nd All the Way is a little lighter.

ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.